Albert j



(No Model.) I

A. J. DOTY,

GAS HEATING BURNER.

No. 411,647. PatentedSept. 24, 1889.

WITNESSES INVENTOR flm w BY ATTORNEYS.

UNITED STATES FFICE.

PATENT ALBERT J. DOTY,OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGNMENTS, TO THE GOODWIN GAS STOVE AND METER COMPANY, OF

SAME PLACE.

GAS-HEATING BURNER.

SPECIFICATION forming part of Letters Patent No. 411,647, datedSeptember 24, 1889. Application filed June 6, 1887. Serial No. 2%,421.(N model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT J. Dor of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented a new and ImprovedGas-Heating Burner, of

which the following is a specification, reference being had to theannexed drawings, forming a part thereof, in which Figure 1 is a planview of my improved 1o gas-heating burner; and Fig. 2 is a longitudinalsection of the burner, showing a transverse section of the handle indetail.

Similar letters of reference indicate corresponding parts in both Views.

The object of my invention is to secure a partial combustion near thepoint of issue of the combustible mixture from the burner and afterwardgradually complete the combustion by the addition of small quantities ofair at different distances from the center of the burner, so as tosecure a widespread flame, and finally a perfect combustion of all ofthe gas issuing from the burner.

My invention consists in means for secur- 2 5 ing these results; andalso further consists in ribs connected with the burner adapted tosupport the vessel or surface to be heated and arranged to be subjectedto the action of the flame, all as hereinafter more fully described.

The body Aof the burner consists of a hollow cylinder B, communicatingat its center with a gas-mixing tube 0, having in the under surfacethereof near the outer end an airopening a and provided at its extremitywith a screw-threaded opening 1), into Which is screwed the gas-pipe D.Feet 0 project from the sides of the cylinder B, and the extremity ofthe tube 0 is provided with a foot d, which, together with the feet 0,supports the cylinder B in a horizontal position.

The upper edge of the walls of the cylinder B are provided with orificese for the escape of the combustible mixture, and the top of the 5 saidcylinder is closed by the solid central part f of the casting E, formingboth the support for the object being heated and the distributer of thecombustible mixture and flame. The central part f of the casting E issecured to the cylinder B by a screw g, passing through the said centralpart and downward into a threaded aperture or nut h in the lower side ofthe tube 0.

From the central part f of the casting E project radial arms 1', whichare connected with an annular plate j, which is slightly concaved andprovided with a downwardly-projecting collar 70 at its inner edge,leaving between the said collar and the cylinder B the space Z. In thearms 7; are formed series of notches m, leaving the intermediate levelsurfaces 01 for the support of the vessel or other object to be heated.Intermediate between the arms a? are placed ribs 0, corresponding inform with the outer ends of the arms i, and also forming an additionalsupport for the object placed upon the stove. In the annular plate j areformed series of holes p near the inner edge thereof and series of holesq near the outer edge thereof, for admitting air to the flame passingbetween the said plate and the surface being heated, so that the gasissuing from the orifices e (and'partly consumed by the air entering theannular space Z) receives through the holes p q full supplies of air, sothat the combustion is complete and the flame is prolonged anddistributed. The annular plate j is placed in such position relative tothe upper surface of the projecting radial arms 2' and ribs 0 as willafford only sufficient space between said plate and the under surface ofthe object being heated, to allow of the free passage ofthe flame orproducts of combustion, and by this means confine the heat more closelyto said surface.

In the case of single burners a handle F, of non-conducting material, isplaced on the pipe D for convenience in moving the stove, and theextremity of the pipe D within the handle is threaded to receive astop-cock or a coupling for flexible tubing. The inner end of the pipe Dis reduced in diameter to form a small orifice r, through which gas isprojected into the tube 0. The gas entering the tube 0 from the orificer mingles with air 5 entering the tube 0 through the opening a andpasses forward to the cylinder B, where it is distributed to the severalopenings e,

port the object to be heated in some other way- Therefore I do not limitor confine my invention to the exact construction shown and described.

By means of my improvement great econ-' omy in the use of gas issecured.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. In a gas-heatingburner, the combination ofthe following parts, viz: the plate f, plate j, and arms 1', cast in asingle piece, the gaschamber B, having orifices c in the vertical sidesthereof, and mixing-tube 0, having an air-opening'a, also cast in asingle piece, a fastening rivet or screw g, passing from the plate f tothe chamber B and holding both castings together, and a gas-supply pipeD, having a gas'orifice opening into said mixing-tube C, said partsbeing constructed and combined substantially as set forth.

2. In a gas-heating burner, the combination of a gas-supply pipe D,having a gas-orifice r, the mixing-tube 0, having an air-opening a, thegas-chamber B, provided with orifices e in the vertical sides thereof,and the plate f, forming a top cover of the gas-chamber B and havingradial arms 2', supporting a surrounding annular plate j, so arrangedwith relation to said gas-chamber B as to form an air-passage betweenthem, which shall supply air upwardly to the flame, said parts beingconstructed and combined substantially as described.

3. In a gas-heating burner, the combination of the pipe D, having a gasorifice a", mixing-tube 0, provided with air-opening a, gaschamber B,having orifices e in the vertical sides thereof, a plate f, havingradial arms z', and an annular plate j, having perforations p and q,supplying air to the flame above the point of ignition,said parts beingconstructed, combined, and arranged substantially as set forth.

ALBERT J. DOTY.

WVitn esses:

LoUIs M. MEGARGEE, JOHN V. RIPPERGER.

